Pulley.



PATENTED JAN. 30, 1906.

H. T. HALLUWBLL.

PULLEY.

APPLICATION FILED 00113, 1902.

1 human HOWARD T. HALLOVVELL, OF DAVISGROVE, PENNSYLVANIA, ASSIGNOR TOSTANDARD PRESSED STEEL COMPANY, A CORPORATION OF PENN- SYLVANIA.

PULLIEY.

Specification of Letters Patent.

Patented Jan. 30, 1906.

Application filed October 13, 1902. Serial No. 126,970.

To all whom it may concern.-

Be it known that I, I'IOWARD T. HALL0- WELL, a citizen. of the UnitedStates, residing at Davisgrove, in the county of Montgomery, State ofPennsylvania, have invented a new and useful Improvement in Pulleys, ofwhich the following is a specification.

My invention relates to improvements in pulleys; and it consists of anovel construction hereinafter described and claimed.

Figure 1 represents a side elevation of a pulley embodying my invention.Fig. 2 represents a sectional view of a portion of the pulley on line a:as, Fig. 1, showing the edges of the rim curved. Fig. 3 represents :aside elevation of a hub with the integral lugs. Fig. 4 represents a sideelevation of a form of yoke employed, a portion of the web-section beingshown broken. Fig. 5 represents a plan view of clips employed.

Similar letters of reference indicate corresponding parts in thefigures.

Referring to the drawings, A designates a split pulley, consisting ofthe sections B and O, and as the formation of each of the sections issimilar a description of one of these will suffice.

D designates the web-sections, which are bent to form the rim orbearing-su1face E, said webs being secured together adjacent the rim bythe rivet F and being su ported at their inner ends with a washertherebetween.

H designates a hub formed in sections, which are bent up and secured byrivets J to the web-sections D, whereby it will be understood that thebent-up portions K form a strengthening or stiffening means for theweb-section.

L designates a yoke which is secured to the hub H by the bolts M, saidyoke L having lugs N thereon, through which pass the bolts P, which aresecured at their opposite ends to a similar yoke which is on the othersection O of the pulley, whereby it will be understood that the sectionsB and O are secured together.

Q designates a suitable bushing, which is provided with the extension R,which extends between the web-sections D for holding the said. block inproper position.

The edges of the rim E are curved, as at S, if desired.

In Fig. 8 I have shown a construction in which I strike up from the hubH the lugs V, through which the bolts W pass, for securing the sectionsB and O together.

In some cases where a large pulley is employed I may find it necessaryto use additional locking means, in which case I form cars A on eachsection adjacent the rim and pass a bolt B therethrough. I may also, ifdesired, secure to the rim-section E clips O, which have theoppositely-extending fingers D entering suitable recesses or depressionsE in the opposite clip, whereby it will be seen that the same preventimproper movement of the parts and act to keep the parts in alinement.

In the above-described manner it will be evident that I may employ toconstruct a split pulley of a strong and durable nature, the sections ofthe pulley being securely locked together and held against displacement.

It will be evident that various changes may be made by those skilled inthe art which will come within the scope of my invention, and I do not,therefore, desire to be limited. in every instance to the exactconstruction herein shown and described.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A pulley comprising two sections, each section consisting of a rim, aweb integral with said rim, a hub having portions embracing and securedto said. web, and means independent of the web and coacting with saidhub for securing the sections of the pulley together.

2. A pulley formed in sections, web-sections and rim formed integral, ahub having portions embracing and secured to the websections, yokesadapted to pass around the hub-sections, and means independent of theweb securing the yokes together outside said hub-sections, whereby thesections of the pulley are secured together with respect to each other.

3. A pulley comprising two sections, each section consisting of a rim, aweb integral with said rim, a hub secured to said web and havingportions embracing the same, yokes passing around said hub-sections andbolts traversing the joint between the sections and r1111. 7 5. A pulleyformed of two sections, each independent of the hub at each side of theyokes for locking the same together.

4. A pulley formed of two sections, each consisting of a rim, a webformed integral with said rim, and hub-sections embracing and secured tosaid web, means for locking said sections together at the hub and meansindependent of the web for keeping said sections in alinement at a pointadjacent said consisting of a rim, a web formed integral with said rim,and hub-sections embracing and secured to said web, of means for unitingsaid sections together adjacent the rim, means between said unitingmeans and the rim for keeping the sections in alinement and means forlocking the sections together, said lastmentioned means beingindependent of the web and secured to the hub-sections.

6. A pulley formed of two sections, each consisting of a rim, a webformed integral therewith, a hub having portions embracing and attachedto said web, and lugs integral with said hub and through the medium ofwhich the sections are secured together and interlocking means at therim at the joint between said sections.

7. A pulley formed of sections, each section consisting of a rim, webportions formed integral therewith, a hub having portions embracing andsecured to said web, and interlockin clips mounted on said rim forkeeping the sections in alinement.

8. A pulley formed of sections, each section consisting of a rim,web-sections formed integral therewith, a washer situated between saidwebsections, a hub having lugs secured to the web, a bushing having anextension fitted between the web-sections and means for securing saidhub-lugs, web-sections and washer together.

9. A pulley formed in sections each section comprising a rim, aweb-section integral therewith, a hub having a flange bearing againstthe web-section, lugs on the web-section and securing means for thesections of the pulley passing through said lugs.

10. A pulley formed in sections each section comprising a rim havingrounded edges, a web-section integral therewith, a hub having a flangeparallel with the web-section adjacent the hub, means embracing said huband independent of the web section and means for securing the partstogether adja cent the hub.

11. A pulley comprising two sections, each section consisting of a rim,a web integral with said rim, a hub having flanges en1brac ing andsecured to said web and forming a stiffening and strengthening meanstherefor and bolt-lugs independent of the web and carried by said hubfor clamping the sections of the pulley together.

HOWARD T. HALLOWVELL. lVitnesses:

JOHN A. \VIEDERSHEIM, WM. OANER WIEDERSHEIM.

